EP2103731A2 - Dispositif de séchage doté d'au moins deux tambours - Google Patents

Dispositif de séchage doté d'au moins deux tambours Download PDF

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Publication number
EP2103731A2
EP2103731A2 EP09003247A EP09003247A EP2103731A2 EP 2103731 A2 EP2103731 A2 EP 2103731A2 EP 09003247 A EP09003247 A EP 09003247A EP 09003247 A EP09003247 A EP 09003247A EP 2103731 A2 EP2103731 A2 EP 2103731A2
Authority
EP
European Patent Office
Prior art keywords
drums
drying
drying device
drum
loading
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP09003247A
Other languages
German (de)
English (en)
Other versions
EP2103731A3 (fr
Inventor
Anja Dr. Flügge
Hans Fladt
Rüdiger Fladt
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hans Fladt GmbH
Fraunhofer Gesellschaft zur Foerderung der Angewandten Forschung eV
Original Assignee
Hans Fladt GmbH
Fraunhofer Gesellschaft zur Foerderung der Angewandten Forschung eV
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hans Fladt GmbH, Fraunhofer Gesellschaft zur Foerderung der Angewandten Forschung eV filed Critical Hans Fladt GmbH
Publication of EP2103731A2 publication Critical patent/EP2103731A2/fr
Publication of EP2103731A3 publication Critical patent/EP2103731A3/fr
Withdrawn legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F58/00—Domestic laundry dryers
    • D06F58/02—Domestic laundry dryers having dryer drums rotating about a horizontal axis
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F31/00—Washing installations comprising an assembly of several washing machines or washing units, e.g. continuous flow assemblies

Definitions

  • space is a scarce commodity in commercial real estate, so that a drying device should also have the best possible use of space.
  • a drying device which operates in so-called batch mode.
  • the drying gas is circulated in this device and the moisture contained in the drying gas after flowing through the laundry to be dried is removed by a condensate separator.
  • a disadvantage of this drying device is that for loading and unloading the drying device a large part of the same must be cooled and then reheated. In addition, no laundry can be dried during the loading and unloading. As a result, the energy efficiency and performance are not optimal.
  • drying apparatus which operates continuously.
  • the drying material is fed to a drying zone via belt conveyors.
  • the drying material is transferred from the first belt conveyor to a second belt conveyor, which moves the material to be dried through the drying zone.
  • the dried material to be dried is transferred to a third belt conveyor and led out of the drying zone.
  • a disadvantage of this device are the great equipment and the large footprint.
  • a drying device in which the material to be dried in different drums is successively passed through different drying zones.
  • Each drying zone includes a separate housing, its own fan and its own heat exchanger.
  • the complex construction results in high production costs and a large space requirement.
  • energy efficient operation of the drying device is prevented or at least made more difficult.
  • the invention has for its object to provide a drying device, with respect to Energy efficiency and space requirements advantageously advances the state of the art and also offers many degrees of freedom in terms of process optimization.
  • the means for conveying the item to be dried comprises at least two drums for receiving the item to be dried and a turnstile, wherein at the turnstile for each drum, a boom is present and wherein the drums are rotatably mounted on the arms.
  • the positioning of the drums in the room by a turnstile is characterized by a particularly simple and therefore also robust construction.
  • the drums of the invention serve as a transport container to transport the material to be dried from a loading station in the drying zone.
  • the drums are used for transporting the material to be dried within the drying zone and for subsequently removing the dried material to be dried out of the drying zone and into an unloading station.
  • drums as a transport container, the loading and unloading of the drums can be decoupled from the actual drying process, so that a continuous drying of drying material and a constant temperature of the drying zone are possible. As a result, the efficiency of drying is significantly increased and it accounts for cooling and heating losses, as inevitably incurred in batch mode.
  • the loading station and the unloading station can be arranged vertically below the drying zone, so that the drying device according to the invention requires only a small base area.
  • a drum located in the loading station can be loaded parallel to the drying and a drum located in the unloading station are cooled and discharged.
  • the loading and unloading times may depend on the drying times be decoupled.
  • a rotation axis of the turnstile preferably extends substantially horizontally. This ensures that by rotating the turnstile the drums perform a movement in the direction of the vertical axis, so that the inventive arrangement of a drying zone above the loading station and the unloading station is particularly easy to implement.
  • the axes of rotation of the drums are substantially horizontal.
  • the drums have a closable loading opening, in particular on its outer surface.
  • the housing accommodating the drying zone is advantageously thermally insulated to minimize the heat losses during the drying process.
  • the housing is gas and gas at least in the drying zone steam-tight, so that the drying gas can not escape uncontrolled.
  • the housing in a lower half of a loading station and / or an unloading station the drums can be transported by turning the turnstile or actuation of the alternative provided conveyors in the loading station and the unloading station.
  • a condensate line is provided in a further advantageous embodiment of the invention.
  • the drying zone can be heated directly with superheated steam, radiant heaters and / or microwaves. Alternatively or additionally, it is also possible, the drying zone indirectly via heat exchangers and / or various energy sources, such as electricity, gas, oil, heat transfer oil and / or steam to heat. Of course, other forms of heat energy are conceivable and possible.
  • one or more weighing devices for detecting the weight of the drying material in the drums is present. This makes it possible, by comparing the initial weight when loading the drums of the material to be dried with the current weight, to determine the mass of moisture that has been removed from the material to be dried by the drying process and to stop drying in dependence on this quantity.
  • An advantageous embodiment of the invention provides that the drying device has three or four drums.
  • a further advantageous embodiment of the invention provides that the drums are driven in rotation, so that they can be rotated, for example, during the drying process and thereby produce a better heat and moisture transfer between the material to be dried and the superheated steam, which is used for drying , This increases the efficiency of the drying process and the drying time can be reduced.
  • the rotary actuators can also be used advantageously in the loading station and the unloading station, for example, to position the loading opening so that in the loading station, the drum easy and example can be loaded by means of a belt conveyor.
  • the drums located in the drying zone are conveyed out of the drying zone by turning the turnstile as soon as the drying material in this drum has reached a sufficient degree of dryness.
  • This degree of drying can be achieved, for example, after a certain drying time has expired, or it is possible to measure the decrease in weight of the drying material in the drying zone and, via this weight decrease, to determine the residual moisture still present in the drying material. Once the residual moisture has fallen below a predetermined limit, the drum can be transported out of the drying zone.
  • FIG. 1 an embodiment of a drying device according to the invention is shown partially cut free. Visible is a frame. This frame is surrounded laterally in normal operation and on its upper side by heat-insulating plates, so that the heat exchange between the interior of the drying device is minimized with the environment. Frame and plates form a housing 1 of the drying device. In the vertical direction, the housing 1 can be divided into an upper part 3 and a lower part 5. Between the upper part 3 and the lower part 5 there is no barrier in the form of a ceiling or a false floor. The separation of the upper part 3, which simultaneously receives a drying zone 7 and the lower part 5, which is subdivided into a loading station 9 and an unloading station 11, takes place only due to temperature and humidity differences of the steam or vapor / air mixture in the housing 1.
  • a rotatably mounted turnstile 13 with a total of four arms 15.1 - 15.4 is arranged in the center of the housing 1.
  • An axis of rotation of the turnstile 13 and a rotary drive of the turnstile 13 are denoted by the reference numerals 17 and 19.
  • drum 21.1 - 21.4 is present in each case.
  • the drums 21.1 and 21.2 In these drums is the Trocknungsgut, especially laundry.
  • the drums 21 are advantageously made of a perforated stainless steel sheet, so that on the one hand the laundry can not fall out of the drums and on the other hand, the heat transfer between the located in the drying zone superheated steam and the material to be dried is good.
  • the turnstile 13 is rotated clockwise by 90 ° so that the drum 21.2 reaches the unloading station 11.
  • the previously located in the unloading drum 21.3 passes through the loading station 9 and can be loaded via a loading device 23 with wet laundry or moist Trocknungsgut.
  • the already loaded drum 24.1 passes from the loading station 9 into the drying zone 7.
  • the drying time is twice as long as the loading and unloading time of the drums 21.4 and 21.3.
  • the drums 21 are formed in the form of a cylindrical hollow body. On the cylindrical part of the Drums 21 each have a loading opening 25 is provided, which is closable. When located in the loading station 9 drums 21.4 the loading opening 25 is opened and the drums 21.4 rotated so that the drum 21.4 is open at the top and can be loaded by a loading device 23 with laundry.
  • the loading openings are closed, so that no laundry can fall out of the drums 21, even if they are rotated about their own axis during the drying process.
  • the loading opening 25 is open and faces down.
  • the dried laundry located in the drum 21.3 can fall under gravity into a transport carriage 27 and be transported away.
  • FIG. 2 the same embodiment is shown in an isometric view.
  • the same components are provided with the same reference numerals and it is the respect FIG. 1 Said accordingly.
  • FIG. 3 shows the back of the drying device according to the invention.
  • the left part of the drying device is covered with the side walls, while the right part is shown cut free.
  • a total of five motors 29 are attached to the frame of the housing 1.
  • the motor 29 located in the middle serves to drive the turnstile 13, while the other motors 29 are used to drive the respective drum 21 located therebetween.
  • the motors 29 are thus mounted stationary and do not rotate with the turnstile.
  • the drums 21st associated motors 29 also attach to the arms of the hub 13. However, then the supply of the motors with energy and the positioning of the drums or the loading openings 25 of the drums in the loading station 9 and the unloading station 11 would be difficult.
  • the heating power is about 160 kW and the cycle time is 20 minutes. This means that the four drums are moved through the turnstile 23 by 90 ° every five minutes.
  • a drum 21 is always located in the loading station 9, another in the unloading station and two drums 21 are located in the drying zone 7.
  • the energy efficiency of the drying device according to the invention is very good, it is calculated with savings of 30 - 70% compared to conventional dryers.
  • the condensate obtained in the drying of the laundry can be used in other processes, since it already has a temperature of just below the boiling point of about 70-80 ° Celsius.
  • the condensate is recovered in the boundary region between the drying zone 3 and the lower region 5.
  • cooling water is pumped through lines. On the cold surface of these pipes condenses the moisture and drips from there in arranged below the lines collecting gutters. These collecting channels open into the condensate line. This arrangement has, in addition to the condensate drainage, the function of separating the drying zone 3 from the lower region 5.
  • FIG. 4 shows a simplified embodiment of a particular embodiment of a rotating device for the drums 21.
  • the rotating device is designed as a toothed or impeller 31.
  • the toothed wheel or impeller 31 is designed as an externally toothed gear and is driven via a pinion (not shown) of a drive motor, in particular a motor 29, if necessary.
  • the required torque of the motor 29 is relatively small because of the large diameter of the disc wheel 31.
  • the drums 21 are guided in guide rails 33 on a "rectangular" path.
  • the drive of the drums 21 takes place for example via a pull rope or a chain 35 or via toothed belt or pinion.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Drying Of Solid Materials (AREA)
EP09003247A 2008-03-20 2009-03-11 Dispositif de séchage doté d'au moins deux tambours Withdrawn EP2103731A3 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102008015130.0A DE102008015130B4 (de) 2008-03-20 2008-03-20 Trocknungsvorrichtung mit mindestens zwei Trommeln

Publications (2)

Publication Number Publication Date
EP2103731A2 true EP2103731A2 (fr) 2009-09-23
EP2103731A3 EP2103731A3 (fr) 2012-01-18

Family

ID=40791138

Family Applications (1)

Application Number Title Priority Date Filing Date
EP09003247A Withdrawn EP2103731A3 (fr) 2008-03-20 2009-03-11 Dispositif de séchage doté d'au moins deux tambours

Country Status (3)

Country Link
US (1) US20090235550A1 (fr)
EP (1) EP2103731A3 (fr)
DE (1) DE102008015130B4 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3453796A1 (fr) * 2015-05-21 2019-03-13 Lavatec Laundry Technology GmbH Séchoir à air modulaire
WO2024080886A1 (fr) * 2022-10-14 2024-04-18 Letona Ramos Guido Manuel Laveuse centrifugeuse sécheuse à deux tambours à système de pulvérisation, d'égouttement, et chargement et déchargement automatique

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100556503B1 (ko) * 2002-11-26 2006-03-03 엘지전자 주식회사 건조기의 건조 시간제어 방법
KR200459576Y1 (ko) 2010-07-03 2012-04-06 노연균 산업용 의류 처리 장치
CN110145928A (zh) * 2019-05-07 2019-08-20 于雄青 一种双排转笼的软胶囊干燥设备

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE583260C (de) 1931-02-10 1933-08-31 Krantz H Fa Verfahren und Schuetteltrockner zur Ausuebung des Verfahrens zum Trocknen von Waeschestuecken
EP0395685B1 (fr) 1987-11-12 1994-09-21 STUBBING, Thomas John Procede et appareil de sechage efficace du point de vue de la consommation d'energie
DE69406546T2 (de) 1993-08-26 1998-05-14 Heat Win Ltd Vorrichtung zur kontinuierlichen trocknung in überhitztem dampf

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1691042A (en) * 1927-04-04 1928-11-13 Invincible Laundry Equipment C Clothes drier
US2271757A (en) * 1938-03-25 1942-02-03 Fred S Boltz Drying apparatus
GB1241892A (en) * 1969-07-01 1971-08-04 Yorkshire Dryer Company Ltd Improvements relating to tumbler dryers

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE583260C (de) 1931-02-10 1933-08-31 Krantz H Fa Verfahren und Schuetteltrockner zur Ausuebung des Verfahrens zum Trocknen von Waeschestuecken
EP0395685B1 (fr) 1987-11-12 1994-09-21 STUBBING, Thomas John Procede et appareil de sechage efficace du point de vue de la consommation d'energie
DE69406546T2 (de) 1993-08-26 1998-05-14 Heat Win Ltd Vorrichtung zur kontinuierlichen trocknung in überhitztem dampf

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3453796A1 (fr) * 2015-05-21 2019-03-13 Lavatec Laundry Technology GmbH Séchoir à air modulaire
WO2024080886A1 (fr) * 2022-10-14 2024-04-18 Letona Ramos Guido Manuel Laveuse centrifugeuse sécheuse à deux tambours à système de pulvérisation, d'égouttement, et chargement et déchargement automatique

Also Published As

Publication number Publication date
DE102008015130B4 (de) 2015-05-28
US20090235550A1 (en) 2009-09-24
EP2103731A3 (fr) 2012-01-18
DE102008015130A1 (de) 2009-10-08

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